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Titre : | The Effects of Task Prioritization on Dual-Tasking Postural Control in Patients With Parkinson Disease Who Have Different Postural Impairments (2020) |
Auteurs : | Yu-Ting Hung ; Liang-Chi Chen ; Ruey-Meei Wu |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (Vol. 101, n° 7, 2020) |
Article en page(s) : | p. 1212-1219 |
Note générale : | https://doi.org/10.1016/j.apmr.2020.02.014 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Attention ; Electromyographie ; Équilibre postural ; Maladie de Parkinson ; Réadaptation |
Résumé : |
Objective
To investigate the effect of task prioritization on dual-task control in Parkinson disease (PD) associated with different postural impairments. Design Cross-sectional study. Participants were instructed to keep 2 interlocking rings apart and maintain balance in a tandem stance. Attention was focused on either stance stability (posture-focus strategy) or the interlocking rings (supraposture-focus strategy). Setting University research laboratory. Participants Fifteen patients with PD and less postural impairment and 15 patients with PD and more postural impairment (N=30). Interventions Not applicable. Main Outcome Measures Postural sway, postural determinism (%DET), ankle co-contraction, and ring-touching time. Results In the less-impairment group, the supraposture-focus strategy provided smaller postural sway and postural %DET compared with the posture-focus strategy. In the more-impairment group, task prioritization showed lower effect on both postural sway and postural %DET. The supraposture-focus strategy led to less ankle co-contraction than the posture-focus strategy in the more-impairment group, but task prioritization did not affect ankle co-contraction in the less-impairment group. In both groups, the supraposture-focus strategy led to less ring-touching time than the posture-focus strategy. Conclusions The supraposture-focus strategy provided better dual-task control than the posture-focus strategy in both PD groups. In the less-impairment group, the supraposture-focus strategy enhanced postural automaticity and postural stability. In the more-impairment group, the supraposture-focus strategy reduced ankle stiffness, owing to reduced muscle co-contraction. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999320301696 |